Home / 13,002.12-17,938.26-11,745

Finding the Fourth Proportional to 13,002.12, 17,938.26 and 11,745

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Solution

The fourth proportional to 13,002.12, 17,938.26 and 11,745 is: 16,203.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,002.12 : 17,938.26 = 11,745 : x
  2. Step 2: Convert to fraction form
    13,002.12/17,938.26 = 11,745/x
  3. Step 3: Cross multiply
    13,002.12x = 17,938.26 × 11,745
  4. Step 4: Simplify right side
    13,002.12x = 210,684,863.70
  5. Step 5: Solve for x
    x = 210,684,863.70/13,002.12
  6. Step 6: Final answer
    x = 16,203.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.